Paper-engaging element for paper-feeding machines.



A. B ROADMEYER.

PAPER ENGAGING ELEMENT FOR PAPER FEEDING MACHINES.

APPLICATION FILED SEPT-16, 19%6.

Patented Dec. 5,1916.

2 SHEETS-SHEET 1.

A TTOHNEYS A. BROADMEYER.

Patented Dec. 5, 1916.

2 SHEETS-SHEET 2.

Ii TTORAIE V8 ALBERT BROADMEYEJR, 0F HARRISBURG, PENNSYLVANIA, ASSIGNOR T0 W. O. HICKOK MANUFACTURING (30., OF HARRISBURG, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

PAPER-ENGAGING ELEMENT FOR PAPER-FEEDING MACHINES.

Specification of Letters Patent.

rammed pee. 5,1916.

Application filed September 16,1916. Serial No. 120,542.

T 0 all whom it may concern:

Be it known that I, ALBERT BROADMEYER, asubject of the Emperor of Germany, and a. resident of Harrisburg, in the county of Dauphin and State of Pennsylvania, have invented a certain new and useful Improvement in Paper-Engaging Elements for Paper-Feeding Machines, of which the following is a specification.

My present invention relates generally to paper feeding machines, and more particularly to those of the character described and claimed in my Patent Number 1,183,626, dated May 16, 1916.

More especially my present invention relates to improvements in the paper engaging element which, in connection with a vertically adjustable table, engages the paper stack upon such table, and controls vertical movement of the table as the paper is fed from the stack, the present improvement aiming to provide a readily adjustable paper engaging element of the specific characteristics to be hereinafter described.

In the accompanying drawings illustratin the present improvements: Figure 1 is a si e elevation of the paper carrying table with a portion of its supportsand a portion of the mechanism effecting its vertical adjustment; Fig. 2 is a detail perspective view of the adjusting screw forming part of my improved paper engaging element: Fig. 3 is a vertical section through the parts shown in Fig. 1, and looking in the opposite direction; Fig. 4 is a vertical sectional view through the paper engaging element; Fig. 5 is a horizontal section therethrough taken substantially on line of Fig.' 1; and Fig. 6 is another vertical section taken substantially on line66 of Fig. 4.

Referring now to these figures, my imroved paper engaging element is generally indicated at 10, and as shown in Figs. 1 and 3, is mounted in practice adjacent the rear end of a controlling rod 11. the forward end of which rod is clamped at 12 to a cross rod 13, the latter being positioned above the forward portion of the paper stack 14. and

having at one end a rearwardly projecting arm 15 pivotally connected at its forward end at 16, intermediate the ends of a latch 17, the latter controlling the movements of a weighted arm 18 constituting a part of the mochamsm. including a vertlcal screw shaft 19 for vertical adjustment of the feed table 20 on which the paper stack 14 is dis posed.

In practice, as outlined in my patent above referred to, withdrawal of sheets from the top of the stack 14 results in low ering of the paper engaging element 10 so as to oscillate shaft 13, and this lowers the latch 17 to partially release the weighted arm 18 for limited movement.

In accordance with my present improve ments, the paper engaging elementlO, as most clearly seen in Figs. 2, 4, 5, and 6, in cludes a vertical tubular body 21, upwardly into the bore of which extends the upper inner end of :1 depending stem 22, the lower end of which is bifurcated or slotted, for the reception of a paper engaging blade 23 having a sharpened lower edge 24 capable of engaging the upper sheet of the stack firmly and at the same time without danger of tearing or otherwise injuring the same. The blade is held in position by a set screw 25 threaded laterally into the lower end of the stem and abutting that portion of the blade 23 extending within the slot or bifurcation of the stem.

The upper inner ortion of the stem 22 is provided with a ongitudinal groove 26, as best seen in Fig. 6, engaged by the inner end of an adjusting screw 27 threaded laterally into the lower portion of the body 21, so as to prevent rotation of the stem 22, and at the same time permit of its vertical adj ustinent. The upper inner end of the stem 22 has, for this purpose, an axially threaded bore receiving the lower threaded portion of an adjusting screw 28 depending within the upper end of the tubular body 21, and provided with an annular groove 29 receiving the inner end of a screw 30 threaded laterally into the upper portion of the body 21, so as to thus prevent rotation of the stem 22 and at the same time permit of its vertical adjustment, the upper inner end of the stem 22 having for this purpose an axial threaded bore receiving the lower threaded portion of an adjusting screw 28 depending within the upper end of the tubular body 21 and provided with an annular groove 29 receiving the inner end of a screw 30 threaded laterally into the upper portion of the body 21, so as to thus prevent long'- tudinal movement of the adjusting screw 33 with respect to the body. The upper portion of the. screw 28, projecting exteriorly of the body 21, is provided with an enlarged milled head 31 by which it may be readily rotated to adjust the paper engaging element, which latter is mounted upon the controlling rod 11 before mentioned, by virtue of its lateral side bore 32 through which the said rod extends. A clamping screw 33 is threaded laterally into one side of the body 21 for engagement with the rod 11 to secure the paper engaging element in adjusted position thereon.

It is obvious from the foregoing that vertical adjustment of the stem 22 may be readily and quickly effected at all times by simply turning the adjusting screw 28 by grasping and turning the upper milled head 31 thereof and that by this means minute and accurate adjustments 'may be made at all times.

I claim I I 1. In a paper feeding machine, including a vertically adjustable feed table, the combination with the controlling rod controlling the verticaladjustment of the table, of a paper engaging element including a vertical tubular body having a horizontal side bore through whichthe controlling rod extends, a stscrew threaded through the body at one side and engaging the said controlling rod to adjustably lock the body of the paper engaging element upon the controlling rod, a stem projecting upwardly into the lower end of the tubular body and having a paper engaging blade at its lower end and a threaded axial bore.at its upper end, an ad justing screw depending within the upper end of-the tubular body and extending with in the threaded bore of the stem, said adjusting screw havingan upper head for rotation thereof, means to prevent vertical movement of the adjiisting screwnvith respect to the body, and means to prevent rotation of the said stem with respect to the body.

2. In a paper feeding machine, including a vertically adjustable feed table, the combination with the controlling rod controlling vertical adjustment of the table, of a paper engaging element including a vertical tubular body having a horizontal side bore through which the controlling rod extends, a set screw one side and engaging the said controlling rod to adjustably lock the body of the paper engaging element upon the controlling rod, a stem projectingupwardly into the lower end of the tubular body and having a paper engaging blade at its lower end and a threaded axial bore in its upper end, an adjusting screw depending within the upper end of the tubular body and adapted to extend within the threaded bore of the stem,

stem 22 and its blade 23 vertically with respect to the body of the,

l ar

body,

threaded through the body at and having an annular groove within the tubular body, a screw threaded laterally through the body adjacent the upper end thereof and having its inner end extending within the groove of the adjusting screw to prevent vertical movement of the latter with respect to the body, and means to prevent rotation of the stem with respect to the tubular body.

3. In a paper feeding machine, including a vertically adjustable feed table, the combination with the controlling rod controlling vertical adjustment of the table, of a, paper engaging element including a vertical tububody having a horizontal side bore through which the controlling rod extends, a set screw threaded through the body at one side and engaging the said controlling rod to adjustably lock the body of the paper engaging element upon the controlling rod, a stem projecting upwardly into the lower end of the tubular body and having a paper engaging blade at its lower end and a threaded axial bore in its upper end, an adjusting screw depending within the upper end of thetubular body and extending within the threaded bore of the stem, having an annular groove within the tubular body, a screw threaded laterally through the body adjacent the upper end thereof andhaving its inner end extending within the groove of the adjusting screw to prevent vertical movement of the latter with respect to the said stem having a longitudinal slot in its upper portion, and a screw threaded laterally through the lower portion of the tubular body and having its inner end extending within the slot of the said stem to prevent rotation of the latter with respect to the tubular body.

4. In'a paper feeding machine including a vertically adjustable feed table, the combination with the controlling rod controlling vertical adjustment of the table, of a paper engaging element adjustably mounted upon the rear portion of the controlling rod and including a vertical tubular body, a non-rotatable stem extending upwardly into the lower portion of the body and having a threaded bore at its upper end, a paper engaging blade carried by the lower end of the said stem. and a.rotatable adjusting screw depending within the upper end of the tubu- 'lar body and extending within the bore of lower portion of the body and having a threaded bore at its upper end, a paper engaging blade carried by the lower end of the said stem a rotatable adjusting screw de- 5 f pending Within the upper end of the tubular body and extending Within the bore of the said stem whereby to adjust the latter with its paper engaging blade vertically with respect to the body, said stem having a slot in ALBERT BROADMEYER. 

